draft proposal for how we might add the x-rust-type extension

Cargo.toml

@@ -6,3 +6,7 @@ members = [
 
 # Ideally, we'd be able to use workspace dependencies, but that's only supported starting Rust 1.64,
 # and our MSRV is Rust 1.60.
+
+[patch.crates-io]
+typify = { path = "../typify/typify" }
+

crates/integration-tests/Cargo.toml

@@ -14,7 +14,7 @@ schemars = { version = "0.8.17", optional = true }
 serde = { version = "1", optional = true }
 serde_json = { version = "1.0.115", optional = true }
 syn = { version = "2.0.48", optional = true }
-typify = { version = "0.0.15", optional = true }
+typify = { version = "0.0.16", optional = true }
 
 [features]
 internal-schemars08-tests = [

crates/integration-tests/outputs/schema-rust-with-replace.rs

@@ -1,20 +1,46 @@
+/// Error types.
+pub mod error {
+    /// Error from a TryFrom or FromStr implementation.
+    pub struct ConversionError(std::borrow::Cow<'static, str>);
+    impl std::error::Error for ConversionError {}
+    impl std::fmt::Display for ConversionError {
+        fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+            std::fmt::Display::fmt(&self.0, f)
+        }
+    }
+    impl std::fmt::Debug for ConversionError {
+        fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+            std::fmt::Debug::fmt(&self.0, f)
+        }
+    }
+    impl From<&'static str> for ConversionError {
+        fn from(value: &'static str) -> Self {
+            Self(value.into())
+        }
+    }
+    impl From<String> for ConversionError {
+        fn from(value: String) -> Self {
+            Self(value.into())
+        }
+    }
+}
 ///MyPathStruct
 ///
 /// <details><summary>JSON schema</summary>
 ///
 /// ```json
-/**{
-  "title": "MyPathStruct",
-  "type": "object",
-  "required": [
-    "id"
-  ],
-  "properties": {
-    "id": {
-      "$ref": "#/definitions/TypedUuidForMyKind"
-    }
-  }
-}*/
+///{
+///  "title": "MyPathStruct",
+///  "type": "object",
+///  "required": [
+///    "id"
+///  ],
+///  "properties": {
+///    "id": {
+///      "$ref": "#/definitions/TypedUuidForMyKind"
+///    }
+///  }
+///}
 /// ```
 /// </details>
 #[derive(Clone, Debug, Deserialize, Serialize)]